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Contact Angle Hysteresis Generated by Strong Dilute Defects

Reyssat, Mathilde, Quéré, David·2009·The Journal of Physical Chemistry B

Abstract

Water on solid decorated with hydrophobic defects (such as micropillars) often stays at the top of the defects in a so-called fakir state, which explains the superhydrophobicity observed in such case, provided that the density of defects is small enough. Here we show that this situation provides an ideal frame for studying the contact angle hysteresis; the phase below the liquid is "perfect" and slippery (it is air), contrasting with pillars' tops whose edges form strong pining sites for the contact line. This model system thus allows us to study the hysteresis as a function of the density of defects and to compare it to the classical theory by Joanny and de Gennes, which is based on very similar hypothesis.

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Metadata

Authors
Reyssat, M., & Quéré, D.
Venue
The Journal of Physical Chemistry B
Published
2009-02-11
Volume
113
Issue
12
Pages
3906-3909
ISSN
  • 1520-5207 (ISSN-L)
  • 1520-6106
OpenAlex
W2071066666
Cited by
228
References
2
FWCI
8.33
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Contact Angle Hysteresis Generated by Strong Dilute Defects. https://app.cochat.ai/papers/10.1021/jp8066876
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Reyssat, M., & Quéré, D. (2009). Contact Angle Hysteresis Generated by Strong Dilute Defects. The Journal of Physical Chemistry B. https://doi.org/10.1021/jp8066876

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